Hydnum rufescens, commonly known as the terracotta hedgehog, is an edible basidiomycete of the family Hydnaceae. It belongs to the small group of mushrooms often referred to as the tooth fungi, which produce fruit bodies whose cap undersurfaces are covered by hymenophores resembling spines or teeth, and not pores or gills.
- the cap of H. rufescens is russet rather than beige,
- the overall dimensions are smaller and more regular in shape, with a central stipe,
- the spines are not decurrent, and
- the spores are slightly larger.
- Roger Phillips: Mushrooms and other fungi of Great Britain & Europe (1981), Pan Books Ltd, London.
- Courtecuisse, R. & Duhem, B. (1994) "Guide des champignons de France et d'Europe" Delachaux et Niestlé ISBN 2-603-00953-2, also available in English.
- "Hydnum rufescens". The Ecology of Commanster. Archived from the original on May 9, 2008. Retrieved September 1, 2008. CS1 maint: discouraged parameter (link)
- Hydnum rufescens at Northern Ireland Fungus Group URL accessed 11 June 2007
- Media related to Hydnum rufescens at Wikimedia Commons